Add window trace status to the bug report

Add the window trace status when dumping the WM service for the
bugreport.

The status include:
- Enabled or not
- Log level (0 - all, 1 - trim or 2 - critical)
- Buffer size
- User buffer space
- Number of elements in the buffer

Test: Run `dumpsys window trace`
Change-Id: Iec43922523b5aab6f14c03f4b5999dcce8ea5dce

diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 899bf7c..1f116f8 100644 (file)
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -5736,6 +5736,11 @@ public class WindowManagerService extends IWindowManager.Stub
         mRoot.dumpTokens(pw, dumpAll);
     }
 
+    private void dumpTraceStatus(PrintWriter pw) {
+        pw.println("WINDOW MANAGER TRACE (dumpsys window trace)");
+        pw.print(mWindowTracing.getStatus() + "\n");
+    }
+
     private void dumpSessionsLocked(PrintWriter pw, boolean dumpAll) {
         pw.println("WINDOW MANAGER SESSIONS (dumpsys window sessions)");
         for (int i=0; i<mSessions.size(); i++) {
@@ -6053,7 +6058,7 @@ public class WindowManagerService extends IWindowManager.Stub
                 pw.println("    d[isplays]: active display contents");
                 pw.println("    t[okens]: token list");
                 pw.println("    w[indows]: window list");
-                pw.println("    trace: write Winscope trace to file");
+                pw.println("    trace: print trace status and write Winscope trace to file");
                 pw.println("  cmd may also be a NAME to dump windows.  NAME may");
                 pw.println("    be a partial substring in a window name, a");
                 pw.println("    Window hex object identifier, or");
@@ -6128,6 +6133,7 @@ public class WindowManagerService extends IWindowManager.Stub
                 }
                 return;
             } else if ("trace".equals(cmd)) {
+                dumpTraceStatus(pw);
                 synchronized (mGlobalLock) {
                     mWindowTracing.writeTraceToFile();
                 }
@@ -6144,43 +6150,49 @@ public class WindowManagerService extends IWindowManager.Stub
 
         synchronized (mGlobalLock) {
             pw.println();
+            final String separator = "---------------------------------------------------------"
+                    + "----------------------";
             if (dumpAll) {
-                pw.println("-------------------------------------------------------------------------------");
+                pw.println(separator);
             }
             dumpLastANRLocked(pw);
             pw.println();
             if (dumpAll) {
-                pw.println("-------------------------------------------------------------------------------");
+                pw.println(separator);
             }
             dumpPolicyLocked(pw, args, dumpAll);
             pw.println();
             if (dumpAll) {
-                pw.println("-------------------------------------------------------------------------------");
+                pw.println(separator);
             }
             dumpAnimatorLocked(pw, args, dumpAll);
             pw.println();
             if (dumpAll) {
-                pw.println("-------------------------------------------------------------------------------");
+                pw.println(separator);
             }
             dumpSessionsLocked(pw, dumpAll);
             pw.println();
             if (dumpAll) {
-                pw.println("-------------------------------------------------------------------------------");
+                pw.println(separator);
             }
             if (dumpAll) {
-                pw.println("-------------------------------------------------------------------------------");
+                pw.println(separator);
             }
             mRoot.dumpDisplayContents(pw);
             pw.println();
             if (dumpAll) {
-                pw.println("-------------------------------------------------------------------------------");
+                pw.println(separator);
             }
             dumpTokensLocked(pw, dumpAll);
             pw.println();
             if (dumpAll) {
-                pw.println("-------------------------------------------------------------------------------");
+                pw.println(separator);
             }
             dumpWindowsLocked(pw, dumpAll, null);
+            if (dumpAll) {
+                pw.println(separator);
+            }
+            dumpTraceStatus(pw);
         }
     }
 

diff --git a/services/core/java/com/android/server/wm/WindowTracing.java b/services/core/java/com/android/server/wm/WindowTracing.java
index 0ce215c..3b17abc 100644 (file)
--- a/services/core/java/com/android/server/wm/WindowTracing.java
+++ b/services/core/java/com/android/server/wm/WindowTracing.java
@@ -217,7 +217,7 @@ class WindowTracing {
         }
     }
 
-    private String getStatus() {
+    String getStatus() {
         return "Status: "
                 + ((isEnabled()) ? "Enabled" : "Disabled")
                 + "\n"